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Grounding Sensors

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paulmillner

Joined: 09 May 2007
Posts: 21
Location: Berkeley, California

Posted: Fri Dec 10, 2010 12:39 pm Post subject: Grounding Sensors

I solved this by installing a spring in the stack... so that the spring 

keeps the washer tight against the sensor body, and makes up for 

differences in pipe thread make-up.



Paul



On 12/9/2010 11:56 PM, AeroElectric-List Digest Server wrote:

 	  Quote: 	
		   If the brass fitting had NPT threads, trying to clamp a tabbed washer

 between the fitting and the manifold is probably not a good idea.

 Clamping force is required to maintain electrical contact/continuity

 with the washer, fitting&  sensor.  NPT threads depend on taper&

 interference fit to seal.  Finding the perfect thickness of washer to

 fill the gap between the manifold boss and the adapter shoulder while

 maintaining the correct fit of the NPT threads without over- or

 under-torquing might be challenging.

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Paul Millner, Berkeley CA [OAK]

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